Demonic Warrior Sapphira

+1: Sapphira can be your commander. Target creature your control gets +3/+3 and gains trample until end of turn.
-2: Deal 3 damage to each opponent(s) and each creature they control gets -3/-3 until your next turn.
-7: Exile all nonland cards from grave, hand & field. Gain control of all creature cards exiled this way, pay as if they were cast from your hand.